State Botanical Garden of Georgia, 2450 S. Milledge Ave.; www.botgarden.uga.edu:• Family hiking club: 9-11 a.m.; explore woods, streams and gardens during the fall months; wear comfortable clothing and sturdy shoes; learning about birds, stream creatures and wildflowers; $5 per person and $15 per family.• Class: “Wild Edibles—From Forest to Fork”: 9 a.m. to 3 p.m.; participants will walk the trail system at the garden identifying foods in the wild and learn how to prepare simple meals with those foods; participants also will consider the few truly “dangerous” plants to avoid; bring a camera and note pad to record identification; class includes discussions of sustainable harvesting techniques, the ethics of foraging, issues surrounding pollution and safety and how to encourage these plants into a yard and garden; dress comfortably for an extended walk; $40.

Oconee County Library, 1080 Experiment Station Road, Watkinsville; (706) 769-3950:• Costume swap: 11 a.m. to 1 p.m.; parents can bring clean, gently used costumes to the library and trade them for new costumes for children ages 0-11 to wear this Halloween; drop off costume by Oct. 10 to get a “swap ticket.”• Library Fright Fest: 1-6 p.m.; teens ages 11-18 will work on crafts for the library’s annual Haunted House; watch movies like “Ghostbusters,” “Red Riding Hood,” and “Devil” while you work.

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